duplicated content

I had worked on a website a few months ago. I wrote educational content - SEO optimized - and the website went live for a small period of time, for 4 /5 months if I am not mistaken, and then the company turned the website off. My concern is that after the content has been indexed and Crawled by...

Ok so here is the case: Three duplicated articles (there's more of them, but for simplicity's sake) on subdomains https://bratislava.virtualne.sk/spravodajstvo/na-kopci-za-obcou-hrabusice-zacali-horiet-kriky-a-trava-hasicom-komplikuje-pracu-vietor.html...

So I was publishing some science articles and I have "references" listed at bottom. When I ran copyscape, the references were popped up. Will Google be smart enough to think the references are not duplicated content? Is there anyway to specify that the references should not be treated as...

I wanna make few, very simple, dating affiliate websites. I wanna increase their value with blog and writing few articles. Can I avoid duplicated content google penalization somehow? I wanna put same (or little changed) textual content in blogs. Can I avoid penalization by registering domains...